Home / 3,172.34-4,377.82-1,775.09

Finding the Fourth Proportional to 3,172.34, 4,377.82 and 1,775.09

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Solution

The fourth proportional to 3,172.34, 4,377.82 and 1,775.09 is: 2,449.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.34 : 4,377.82 = 1,775.09 : x
  2. Step 2: Convert to fraction form
    3,172.34/4,377.82 = 1,775.09/x
  3. Step 3: Cross multiply
    3,172.34x = 4,377.82 × 1,775.09
  4. Step 4: Simplify right side
    3,172.34x = 7,771,013.10
  5. Step 5: Solve for x
    x = 7,771,013.10/3,172.34
  6. Step 6: Final answer
    x = 2,449.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.